You want to know why the HSR guy down the hall sighs and slumps his shoulders every time you burst into his office with the great news that you just signed a deal to acquire a company with big operations in Brazil? This is why:

Under the legislation, the [Brazilian] antitrust authority known as Cade has said it will take no more than 330 days to review a proposed merger. Previously, companies filed requests to review a deal after an accord had already been closed, allowing operations to be integrated before approval from Cade, which took as long as two years in some cases.

Brazil is proposing to revise its premerger notification system to speed up approvals from two years following closing to 330 days. I guess that's better, but still ... ugh. I don't know if this change is necessarily an improvement. Previously, you had to file post-closing and then let it sit for years -- with the risk that antitrust authorities might require you to 'unscramble the eggs' at some point. Now, you will be required to file within 15 days of signing, but then you have to sit for as long as 330 days (240 days, plus an additional 90 days in "complex" cases), not 30 days like in the US (The Economist).